We are proud to offer this AR-STONER 350 Legend Upper Receiver Assembly at an exceptional price! This AR-STONER upper features a 350 Legend bolt carrier group, parkerized finish, low profile gas block, and a M4 profile barrel. The A3 upper will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, A2 flash hider, bolt and bolt carrier assembly. Supplied without a rear sight, this upper is a great platform for a red dot sight or iron sights (both sold separately).
Features:
- 16″ Parkerized 4150 Chrome Moly Vanadium Barrel with 1:16 Twist
- M4 Contour Barrel
- 15″ MLOK Rail
- Rear Charging
- Carbine Length Gas System
- .346″ bore with a .355″ groove
Note: this upper receiver does not come with a magazine
Product Information
| Cartridge | 350 Legend |
| Color | Black |
| Finish | Anodized |
| Material | Aluminum |
| Weight | 4.335 Pound |
| Barrel Length | 16 Inches |
| Barrel Material | 4150 Chrome Moly Vanadium Steel |
| Barrel Finish | Parkerized |
| Twist | 1:16 Inches |
| Threads | 5/8″-24 |
| Barrel Contour | M4 |
| Chrome Lined | No |
| Gas Block Diameter | 0.75 Inches |
| Gas System Length | Carbine |
| M4 Feed Ramps | Yes |
| Upper Receiver Type | A3 Flat-Top |
| Handguard | 15″ M-Lok Ultralight |
| Bolt Carrier Assembly Included | Yes |
| Muzzle Device | Flash Hider |
| Country of Origin | United States of America |
